"Nestor 10" wrote in message
. ..
youhavereachedadam wrote in message
oups.com...
I have a question about CO2 as well so I will throw it in here. If I
had a plant-only tank, say an aqua garden or a growing tank for plants
I want to sell, is there such a thing as too much CO2?...
"Elaine T" responded in message
om...
Yep. You will suffocate your fish with too much CO2. I forget
the amount that kills them, but it's quite possble to do.
Elaine might have missed this part in her response as there are no fish
involved. The numbers that she can't remember for fish (only since it
was brought up) is about 40 ppm. Such a concentration does not
suffocate the fish, instead severely limiting or even prohibiting the
release of CO2 from their bloodstreams in respiration. If the
bloodstream cannot release its CO2 then acidosis occurs within the
body, triggering detrimental systemic responses.
youhavereachedadam continues with...
I know that adding lots of CO2 will lower the Ph, so there is
obviously
an upper limit to how much CO2 could be injected...
The amount that will dissolve in the water is dependent on many
factors, and the combination of all of them will most likely _not_
allow the concentration in a tank to reach levels that will prove
harmful to plants unless you were to completely seal the tank. NetMax
is correct in his assumption that at some level of injection you will
reach a point of diminishing returns.
Concentrations of 30 - 40 ppm have been suggested as good for plants by
such as Dennerle, Tropika and members of the Aquatic Gardeners
Association.
What about piping CO2 to the base of the plants and bubbling the
gas up through the leaves?...
Speaking of the AGA, their mailing list (archived at
http://fins.actwin.com/aquatic-plants/ ) recently discussed the pros
and cons of CO2 "misting" as it affects plant growth, with emperical
evidence pointing to the PRO side of the argument. My own experience
with misting lies with using the filter's impellor to not only dissolve
CO2 into the water but provide a fine mist of undissolved bubbles (I
tend to yeast reactors to provide a more - than - ample supply of the
gas) with fantastic results over the last few years.
Any mad scientist ideas out there? I have a 10g tank sitting in my
garage just waiting for a haribrained scheme.
With a 10- Gallon tank and optimal growth conditions, you may as well
sell your excess - you'll certainly be pruning often enough ;-) ...
--
-Y-
Nestor 10
".chkr" is for mail-bots
Greetings Nestor
welcome back?
If you want to trim this cross-post, I'm mostly in rafm (or aa but rafp
is usually too technical for my plant-growing aspirations, which are
mostly met by keeping them watered ;~).
--
www.NetMax.tk